GMC Terrain: Buying New Tires

GM has developed and matched specific tires for the vehicle. The original equipment
tires installed were designed to meet General Motors Tire Performance Criteria Specification
(TPC Spec) system rating. When replacement tires are needed, GM strongly recommends
buying tires with the same TPC Spec rating.

GM's exclusive TPC Spec system considers over a dozen critical specifications
that impact the overall performance of the vehicle, including brake system performance,
ride and handling, traction control, and tire pressure monitoring performance. GM's
TPC Spec number is molded onto the tire's sidewall near the tire size. If the tires
have an all&-season tread design, the TPC Spec number will be followed by MS for
mud and snow. See Tire Sidewall Labeling on page 10‑45 for additional information.

GM recommends replacing all the tires at the same time. Uniform tread depth on
all tires will help to maintain the performance of the vehicle. Braking and handling
performance may be adversely affected if all the tires are not replaced at the same
time. See Tire Inspection on page 10‑57 and Tire Rotation on page 10‑57 for information
on proper tire rotation.

WARNING

Tires could explode during improper service. Attempting to mount or dismount
a tire could cause injury or death. Only your dealer or authorized tire service
center should mount or dismount the tires.

WARNING

Mixing tires of different sizes, brands, or types may cause loss of control of
the vehicle, resulting in a crash or other vehicle damage. Use the correct size,
brand, and type of tires on all wheels.

WARNING

Using bias-ply tires on the vehicle may cause the wheel rim flanges to develop
cracks after many miles of driving. A tire and/or wheel could fail suddenly and
cause a crash. Use only radial-ply tires with the wheels on the vehicle.

If the vehicle tires must be replaced with a tire that does not have a TPC Spec
number, make sure they are the same size, load range, speed rating, and construction
(radial) as the original tires.

Vehicles that have a tire pressure monitoring system could give an inaccurate
low&-pressure warning if non&-TPC Spec rated tires are installed. See Tire Pressure
Monitor System on page 10‑52.

The Tire and Loading Information label indicates the original equipment tires
on the vehicle. See Vehicle Load Limits on page 9‑16 for the label location and
more information about the Tire and Loading Information label.

If wheels or tires are installed that are a different size than the original
equipment wheels and tires, vehicle performance, including its braking, ride and
handling characteristics, stability, a ...

See also:

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Driving on Hills
Driving safely on hills requires good judgment and an understanding of what the
vehicle can and cannot do.
WARNING
Many hills are simply too steep for any vehicle. Driving up hills can cause the
...